# On some nonlocal elliptic and parabolic equations

Friday, April 20, 2012 -

3:00pm to 4:00pm

We show some results on existence and compactness of solutions of a fractional Nirenberg problem. Regularity properties for solutions of some degenerate elliptic equations as well as a Liouville type theorem are established, and used in our blow up analysis. We also introduce a fractional Yamabe flow and show that on the conformal spheres $(S^n, [g_{S^n}])$ it converges to the standard sphere up to a Mobius diffeomorphism. These arguments can be applied to obtain extinction profiles of solutions of some fractional porous medium equations, which are further used to improve a Sobolev inequality via a quantitative estimate of the remainder term.

Speaker:

Tianling Jin

Rutgers University

Event Location:

Fine Hall 314